From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Modification to the Bentley 6C chassis cylinder head to improve slow running.
| Identifier | ExFiles\Box 124\1\ scan0235 | |
| Date | 27th July 1939 | |
| 10HH c. Rm.{William Robotham - Chief Engineer} c.c. Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} By/Ald.{F. Allwood - Experimental Design}3/AW.27.7.39. BENTLEY 6C CHASSIS. CYLINDER - SECTION 5050. Please receive herewith 2 blue prints of the following:- EXS.1869. Modification to Cylinder Head. The above modification consists of a deepening of the sparking plug recesses, to bring the plug points into the combustion chamber, in an effort to improve slow running. The particular head to be modified will be supplied by Rm{William Robotham - Chief Engineer}/Swdl.{Len H. Swindell} Kindly instruct. Ald{F. Allwood - Experimental Design} By/Ald.{F. Allwood - Experimental Design} | ||